Type locality. QLD, Atherton, - 37.46248°N, 122.1978°E, 752m asl, Mjöberg leg.
Other material examined. SA, Belair, - 35.0079°S, 138.6339°E, 300m asl, i.35, R. V.Southcott leg., det. Womersley as E. ambigua. We here identify this specimen as a Drepanura sp. with falciform mucro and basal spine.
The type specimen of E. ambigua from Atherton, Queensland has not been examined. It is in the NHRM.